[1000] Fix | Delete

if ($this->cfg_js_defer === 2) {

[1001] Fix | Delete

// Drop type attribute from $attrs

[1002] Fix | Delete

$attrs = Utility::remove_attr( $attrs, 'type' );

[1003] Fix | Delete

// Replace DOMContentLoaded

[1004] Fix | Delete

$con = str_replace('DOMContentLoaded', 'DOMContentLiteSpeedLoaded', $con);

[1005] Fix | Delete

return '<script' . $attrs . ' type="litespeed/javascript">' . $con . '</script>';

[1006] Fix | Delete

// return '<script' . $attrs . ' type="litespeed/javascript" src="data:text/javascript;base64,' . base64_encode( $con ) . '"></script>';

[1007] Fix | Delete

// return '<script' . $attrs . ' type="litespeed/javascript">' . $con . '</script>';

[1008] Fix | Delete

}

[1009] Fix | Delete

[1010] Fix | Delete

return '<script' . $attrs . ' src="data:text/javascript;base64,' . base64_encode($con) . '" defer></script>';

[1011] Fix | Delete

}

[1012] Fix | Delete

[1013] Fix | Delete

/**

[1014] Fix | Delete

* Replace ESI to JS inline var (mainly used to avoid nonce timeout)

[1015] Fix | Delete

*

[1016] Fix | Delete

* @since 3.5.1

[1017] Fix | Delete

*/

[1018] Fix | Delete

private function _preserve_esi( $con ) {

[1019] Fix | Delete

$esi_placeholder_list = $this->cls('ESI')->contain_preserve_esi($con);

[1020] Fix | Delete

if (!$esi_placeholder_list) {

[1021] Fix | Delete

return $con;

[1022] Fix | Delete

}

[1023] Fix | Delete

[1024] Fix | Delete

foreach ($esi_placeholder_list as $esi_placeholder) {

[1025] Fix | Delete

$js_var = '__litespeed_var_' . self::$_var_i++ . '__';

[1026] Fix | Delete

$con = str_replace($esi_placeholder, $js_var, $con);

[1027] Fix | Delete

$this->_var_preserve_js[] = $js_var . '=' . $esi_placeholder;

[1028] Fix | Delete

}

[1029] Fix | Delete

[1030] Fix | Delete

return $con;

[1031] Fix | Delete

}

[1032] Fix | Delete

[1033] Fix | Delete

/**

[1034] Fix | Delete

* Parse css src and remove to-be-removed css

[1035] Fix | Delete

*

[1036] Fix | Delete

* @since 1.2.2

[1037] Fix | Delete

* @access private

[1038] Fix | Delete

* @return array All the src & related raw html list

[1039] Fix | Delete

*/

[1040] Fix | Delete

private function _parse_css() {

[1041] Fix | Delete

$excludes = apply_filters('litespeed_optimize_css_excludes', $this->conf(self::O_OPTM_CSS_EXC));

[1042] Fix | Delete

$ucss_file_exc_inline = apply_filters('litespeed_optimize_ucss_file_exc_inline', $this->conf(self::O_OPTM_UCSS_FILE_EXC_INLINE));

[1043] Fix | Delete

[1044] Fix | Delete

// Append dummy css to exclude list

[1045] Fix | Delete

$excludes[] = 'litespeed-dummy.css';

[1046] Fix | Delete

[1047] Fix | Delete

$combine_ext_inl = $this->conf(self::O_OPTM_CSS_COMB_EXT_INL);

[1048] Fix | Delete

if (!apply_filters('litespeed_optm_css_comb_ext_inl', true)) {

[1049] Fix | Delete

self::debug2('css_comb_ext_inl bypassed via litespeed_optm_css_comb_ext_inl filter');

[1050] Fix | Delete

$combine_ext_inl = false;

[1051] Fix | Delete

}

[1052] Fix | Delete

[1053] Fix | Delete

$css_to_be_removed = apply_filters('litespeed_optm_css_to_be_removed', array());

[1054] Fix | Delete

[1055] Fix | Delete

$src_list = array();

[1056] Fix | Delete

$html_list = array();

[1057] Fix | Delete

[1058] Fix | Delete

// $dom = new \PHPHtmlParser\Dom;

[1059] Fix | Delete

// $dom->load( $content );return $val;

[1060] Fix | Delete

// $items = $dom->find( 'link' );

[1061] Fix | Delete

[1062] Fix | Delete

// V7 added: (?:\r\n?|\n?) to fix replacement leaving empty new line

[1063] Fix | Delete

$content = preg_replace(

[1064] Fix | Delete

array( '#<!--.*-->(?:\r\n?|\n?)#sU', '#<script([^>]*)>.*</script>(?:\r\n?|\n?)#isU', '#<noscript([^>]*)>.*</noscript>(?:\r\n?|\n?)#isU' ),

[1065] Fix | Delete

'',

[1066] Fix | Delete

$this->content

[1067] Fix | Delete

);

[1068] Fix | Delete

preg_match_all('#<link ([^>]+)/?>|<style([^>]*)>([^<]+)</style>(?:\r\n?|\n?)#isU', $content, $matches, PREG_SET_ORDER);

[1069] Fix | Delete

[1070] Fix | Delete

foreach ($matches as $match) {

[1071] Fix | Delete

// to avoid multiple replacement

[1072] Fix | Delete

if (in_array($match[0], $html_list)) {

[1073] Fix | Delete

continue;

[1074] Fix | Delete

}

[1075] Fix | Delete

[1076] Fix | Delete

if ($exclude = Utility::str_hit_array($match[0], $excludes)) {

[1077] Fix | Delete

self::debug2('_parse_css bypassed exclude ' . $exclude);

[1078] Fix | Delete

continue;

[1079] Fix | Delete

}

[1080] Fix | Delete

[1081] Fix | Delete

$this_src_arr = array();

[1082] Fix | Delete

if (strpos($match[0], '<link') === 0) {

[1083] Fix | Delete

$attrs = Utility::parse_attr($match[1]);

[1084] Fix | Delete

if (empty($attrs['rel']) || $attrs['rel'] !== 'stylesheet') {

[1085] Fix | Delete

continue;

[1086] Fix | Delete

}

[1087] Fix | Delete

if (empty($attrs['href'])) {

[1088] Fix | Delete

continue;

[1089] Fix | Delete

}

[1090] Fix | Delete

[1091] Fix | Delete

// Check if need to remove this css

[1092] Fix | Delete

if (Utility::str_hit_array($attrs['href'], $css_to_be_removed)) {

[1093] Fix | Delete

self::debug('rm css snippet ' . $attrs['href']);

[1094] Fix | Delete

// Delete this css snippet from orig html

[1095] Fix | Delete

$this->content = str_replace($match[0], '', $this->content);

[1096] Fix | Delete

[1097] Fix | Delete

continue;

[1098] Fix | Delete

}

[1099] Fix | Delete

[1100] Fix | Delete

// Check if need to inline this css file

[1101] Fix | Delete

if ($this->conf(self::O_OPTM_UCSS) && Utility::str_hit_array($attrs['href'], $ucss_file_exc_inline)) {

[1102] Fix | Delete

self::debug('ucss_file_exc_inline hit ' . $attrs['href']);

[1103] Fix | Delete

// Replace this css to inline from orig html

[1104] Fix | Delete

$inline_script = '<style>' . $this->__optimizer->load_file($attrs['href']) . '</style>';

[1105] Fix | Delete

$this->content = str_replace($match[0], $inline_script, $this->content);

[1106] Fix | Delete

[1107] Fix | Delete

continue;

[1108] Fix | Delete

}

[1109] Fix | Delete

[1110] Fix | Delete

// Check Google fonts hit

[1111] Fix | Delete

if (strpos($attrs['href'], 'fonts.googleapis.com') !== false) {

[1112] Fix | Delete

/**

[1113] Fix | Delete

* For async gg fonts, will add webfont into head, hence remove it from buffer and store the matches to use later

[1114] Fix | Delete

*

[1115] Fix | Delete

* @since 2.7.3

[1116] Fix | Delete

* @since 3.0 For font display optm, need to parse google fonts URL too

[1117] Fix | Delete

*/

[1118] Fix | Delete

if (!in_array($attrs['href'], $this->_ggfonts_urls)) {

[1119] Fix | Delete

$this->_ggfonts_urls[] = $attrs['href'];

[1120] Fix | Delete

}

[1121] Fix | Delete

[1122] Fix | Delete

if ($this->cfg_ggfonts_rm || $this->cfg_ggfonts_async) {

[1123] Fix | Delete

self::debug('rm css snippet [Google fonts] ' . $attrs['href']);

[1124] Fix | Delete

$this->content = str_replace($match[0], '', $this->content);

[1125] Fix | Delete

[1126] Fix | Delete

continue;

[1127] Fix | Delete

}

[1128] Fix | Delete

}

[1129] Fix | Delete

[1130] Fix | Delete

if (isset($attrs['data-optimized'])) {

[1131] Fix | Delete

// $this_src_arr[ 'exc' ] = true;

[1132] Fix | Delete

continue;

[1133] Fix | Delete

} elseif (!empty($attrs['data-no-optimize'])) {

[1134] Fix | Delete

// $this_src_arr[ 'exc' ] = true;

[1135] Fix | Delete

continue;

[1136] Fix | Delete

}

[1137] Fix | Delete

[1138] Fix | Delete

$is_internal = Utility::is_internal_file($attrs['href']);

[1139] Fix | Delete

$ext_excluded = !$combine_ext_inl && !$is_internal;

[1140] Fix | Delete

if ($ext_excluded) {

[1141] Fix | Delete

self::debug2('Bypassed due to external link');

[1142] Fix | Delete

// Maybe defer

[1143] Fix | Delete

if ($this->cfg_css_async) {

[1144] Fix | Delete

$snippet = $this->_async_css($match[0]);

[1145] Fix | Delete

if ($snippet != $match[0]) {

[1146] Fix | Delete

$this->content = str_replace($match[0], $snippet, $this->content);

[1147] Fix | Delete

}

[1148] Fix | Delete

}

[1149] Fix | Delete

[1150] Fix | Delete

continue;

[1151] Fix | Delete

}

[1152] Fix | Delete

[1153] Fix | Delete

if (!empty($attrs['media']) && $attrs['media'] !== 'all') {

[1154] Fix | Delete

$this_src_arr['media'] = $attrs['media'];

[1155] Fix | Delete

}

[1156] Fix | Delete

[1157] Fix | Delete

$this_src_arr['src'] = $attrs['href'];

[1158] Fix | Delete

} else {

[1159] Fix | Delete

// Inline style

[1160] Fix | Delete

if (!$combine_ext_inl) {

[1161] Fix | Delete

self::debug2('Bypassed due to inline');

[1162] Fix | Delete

continue;

[1163] Fix | Delete

}

[1164] Fix | Delete

[1165] Fix | Delete

$attrs = Utility::parse_attr($match[2]);

[1166] Fix | Delete

[1167] Fix | Delete

if (!empty($attrs['data-no-optimize'])) {

[1168] Fix | Delete

continue;

[1169] Fix | Delete

}

[1170] Fix | Delete

[1171] Fix | Delete

if (!empty($attrs['media']) && $attrs['media'] !== 'all') {

[1172] Fix | Delete

$this_src_arr['media'] = $attrs['media'];

[1173] Fix | Delete

}

[1174] Fix | Delete

[1175] Fix | Delete

$this_src_arr['inl'] = true;

[1176] Fix | Delete

$this_src_arr['src'] = $match[3];

[1177] Fix | Delete

}

[1178] Fix | Delete

[1179] Fix | Delete

$src_list[] = $this_src_arr;

[1180] Fix | Delete

[1181] Fix | Delete

$html_list[] = $match[0];

[1182] Fix | Delete

}

[1183] Fix | Delete

[1184] Fix | Delete

return array( $src_list, $html_list );

[1185] Fix | Delete

}

[1186] Fix | Delete

[1187] Fix | Delete

/**

[1188] Fix | Delete

* Replace css to async loaded css

[1189] Fix | Delete

*

[1190] Fix | Delete

* @since 1.3

[1191] Fix | Delete

* @access private

[1192] Fix | Delete

*/

[1193] Fix | Delete

private function _async_css_list( $html_list, $src_list ) {

[1194] Fix | Delete

foreach ($html_list as $k => $ori) {

[1195] Fix | Delete

if (!empty($src_list[$k]['inl'])) {

[1196] Fix | Delete

continue;

[1197] Fix | Delete

}

[1198] Fix | Delete

[1199] Fix | Delete

$html_list[$k] = $this->_async_css($ori);

[1200] Fix | Delete

}

[1201] Fix | Delete

return $html_list;

[1202] Fix | Delete

}

[1203] Fix | Delete

[1204] Fix | Delete

/**

[1205] Fix | Delete

* Async CSS snippet

[1206] Fix | Delete

*

[1207] Fix | Delete

* @since 3.5

[1208] Fix | Delete

*/

[1209] Fix | Delete

private function _async_css( $ori ) {

[1210] Fix | Delete

if (strpos($ori, 'data-asynced') !== false) {

[1211] Fix | Delete

self::debug2('bypass: attr data-asynced exist');

[1212] Fix | Delete

return $ori;

[1213] Fix | Delete

}

[1214] Fix | Delete

[1215] Fix | Delete

if (strpos($ori, 'data-no-async') !== false) {

[1216] Fix | Delete

self::debug2('bypass: attr api data-no-async');

[1217] Fix | Delete

return $ori;

[1218] Fix | Delete

}

[1219] Fix | Delete

[1220] Fix | Delete

// async replacement

[1221] Fix | Delete

$v = str_replace('stylesheet', 'preload', $ori);

[1222] Fix | Delete

$v = str_replace('<link', '<link data-asynced="1" as="style" onload="this.onload=null;this.rel=\'stylesheet\'" ', $v);

[1223] Fix | Delete

// Append to noscript content

[1224] Fix | Delete

if (!defined('LITESPEED_GUEST_OPTM') && !$this->conf(self::O_OPTM_NOSCRIPT_RM)) {

[1225] Fix | Delete

$v .= '<noscript>' . preg_replace('/ id=\'[\w-]+\' /U', ' ', $ori) . '</noscript>';

[1226] Fix | Delete

}

[1227] Fix | Delete

[1228] Fix | Delete

return $v;

[1229] Fix | Delete

}

[1230] Fix | Delete

[1231] Fix | Delete

/**

[1232] Fix | Delete

* Defer JS snippet

[1233] Fix | Delete

*

[1234] Fix | Delete

* @since 3.5

[1235] Fix | Delete

*/

[1236] Fix | Delete

private function _js_defer( $ori, $src ) {

[1237] Fix | Delete

$ori = Utility::remove_attr( $ori, 'async' );

[1238] Fix | Delete

[1239] Fix | Delete

if (strpos($ori, 'defer') !== false) {

[1240] Fix | Delete

return false;

[1241] Fix | Delete

}

[1242] Fix | Delete

if (strpos($ori, 'data-deferred') !== false) {

[1243] Fix | Delete

self::debug2('bypass: attr data-deferred exist');

[1244] Fix | Delete

return false;

[1245] Fix | Delete

}

[1246] Fix | Delete

if (strpos($ori, 'data-no-defer') !== false) {

[1247] Fix | Delete

self::debug2('bypass: attr api data-no-defer');

[1248] Fix | Delete

return false;

[1249] Fix | Delete

}

[1250] Fix | Delete

[1251] Fix | Delete

/**

[1252] Fix | Delete

* Exclude JS from setting

[1253] Fix | Delete

*

[1254] Fix | Delete

* @since 1.5

[1255] Fix | Delete

*/

[1256] Fix | Delete

if (Utility::str_hit_array($src, $this->cfg_js_defer_exc)) {

[1257] Fix | Delete

self::debug('js defer exclude ' . $src);

[1258] Fix | Delete

return false;

[1259] Fix | Delete

}

[1260] Fix | Delete

[1261] Fix | Delete

if ($this->cfg_js_defer === 2 || Utility::str_hit_array($src, $this->cfg_js_delay_inc)) {

[1262] Fix | Delete

$ori = Utility::remove_attr( $ori, 'type' );

[1263] Fix | Delete

return str_replace(' src=', ' type="litespeed/javascript" data-src=', $ori);

[1264] Fix | Delete

}

[1265] Fix | Delete

[1266] Fix | Delete

return str_replace('></script>', ' defer data-deferred="1"></script>', $ori);

[1267] Fix | Delete

}

[1268] Fix | Delete

[1269] Fix | Delete

/**

[1270] Fix | Delete

* Delay JS for included setting

[1271] Fix | Delete

*

[1272] Fix | Delete

* @since 5.6

[1273] Fix | Delete

*/

[1274] Fix | Delete

private function _js_delay( $ori, $src ) {

[1275] Fix | Delete

$ori = Utility::remove_attr( $ori, 'async' );

[1276] Fix | Delete

[1277] Fix | Delete

if (strpos($ori, 'defer') !== false) {

[1278] Fix | Delete

return false;

[1279] Fix | Delete

}

[1280] Fix | Delete

if (strpos($ori, 'data-deferred') !== false) {

[1281] Fix | Delete

self::debug2('bypass: attr data-deferred exist');

[1282] Fix | Delete

return false;

[1283] Fix | Delete

}

[1284] Fix | Delete

if (strpos($ori, 'data-no-defer') !== false) {

[1285] Fix | Delete

self::debug2('bypass: attr api data-no-defer');

[1286] Fix | Delete

return false;

[1287] Fix | Delete

}

[1288] Fix | Delete

[1289] Fix | Delete

if (!Utility::str_hit_array($src, $this->cfg_js_delay_inc)) {

[1290] Fix | Delete

return;

[1291] Fix | Delete

}

[1292] Fix | Delete

[1293] Fix | Delete

$ori = Utility::remove_attr( $ori, 'type' );

[1294] Fix | Delete

return str_replace(' src=', ' type="litespeed/javascript" data-src=', $ori);

[1295] Fix | Delete

}

[1296] Fix | Delete

}

[1297] Fix | Delete

[1298] Fix | Delete